Air conditioner indoor unit and air conditioner
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- MIDEA GRP WUHAN HEATING & VENTILATING EQUIP CO LTD
- Filing Date
- 2025-06-30
- Publication Date
- 2026-06-23
AI Technical Summary
这种风管机在运行时，存在出风噪音大、换热器的换热效率低等的问题
[0014]本申请实施例提供的空调内机，换热器为折形换热器，折形换热器相比于直排换热器，折形换热器在上下方向上布置U管的有效尺寸更大，这样折形换热器在上下方向上可以布置更多的U管，此方案通过减小换热管的排数、增大在上下方向布置的U管的数量，可以提升换热器的换热效率；而且，此方案换热管的排数仅为一排或两排，这样换热管形成的风阻更小，可以降低空调内机的出风噪音。
Smart Images
Figure CN224397901U_ABST
Abstract
Description
Technical Field
[0001] This application relates to, but is not limited to, the field of air conditioning equipment technology, specifically referring to an indoor air conditioning unit and an air conditioner. Background Technology
[0002] A ducted air conditioner includes a main body, a condensate tray, a heat exchanger, and a fan. The main body has an air inlet at the rear and an air outlet at the front. The condensate tray is located inside the main body, and the heat exchanger is located inside the main body and mounted on the condensate tray. The fan is located inside the main body, between the heat exchanger and the air inlet. The heat exchanger is a straight-flow heat exchanger with three rows of heat exchange tubes. This type of ducted air conditioner suffers from problems such as high noise levels and low heat exchange efficiency during operation. Utility Model Content
[0003] Analysis revealed that among the three rows of heat exchange tubes, the row closest to the fan has the largest temperature difference, while the row furthest from the fan has the smallest. Using the heat exchange efficiency of the row closest to the fan as a factor of 1, the heat exchange efficiency of the middle row is only 0.6 to 0.7 times that of the row closest to the fan, and the heat exchange efficiency of the row furthest from the fan is only 0.3 to 0.4 times that of the row closest to the fan. This lower efficiency of the heat exchanger in this type of ducted air conditioner, coupled with the relatively high air resistance created by the three rows of heat exchange tubes, results in higher noise levels from the exhaust.
[0004] This application provides an indoor air conditioning unit, comprising: a main body, the front side wall of which has a front air outlet, and the front part of the lower side wall of which has a lower air outlet; a water collection tray, disposed within the main body and located behind the lower air outlet; a fan and a heat exchanger, the fan being located within the main body and located behind the water collection tray, and the heat exchanger being disposed on the water collection tray; wherein the heat exchanger is a folded heat exchanger, the folded heat exchanger having M rows of heat exchange tubes and N heat exchange sections, the N heat exchange sections being connected sequentially to form N folds, the M rows of heat exchange tubes passing through the N heat exchange sections, 1≤M≤2, N≥2.
[0005] In some exemplary embodiments, the front end of the folded heat exchanger is located behind the lower air outlet in the front-back direction.
[0006] In some exemplary embodiments, the front end of the folded heat exchanger is located behind the front end of the water receiving pan in the front-back direction, and the distance L1 between the front end of the folded heat exchanger and the front end of the water receiving pan in the front-back direction is ≥5mm.
[0007] In some exemplary embodiments, the indoor unit of the air conditioner further includes: a first air guide plate, one end of which is hinged to the upper part of the front air outlet, and the other end of which is configured to swing from the front air outlet toward the interior of the main body; and a second air guide plate, one end of which is hinged to the lower part of the front air outlet, and the other end of which is configured to swing from the front air outlet toward the interior of the main body; wherein the maximum circumference of the swinging part of the first air guide plate is a reference circle D1, the maximum circumference of the swinging part of the second air guide plate is a reference circle D2, the folded heat exchanger is located behind the reference circles D1 and D2, and the minimum distance t1 between the folded heat exchanger and the reference circle D1 is ≥ 5 mm, and the minimum distance t2 between the folded heat exchanger and the reference circle D2 is ≥ 5 mm.
[0008] In some exemplary embodiments, the air outlet of the fan is located on the upper inner side of the main body, the lower end of the folded heat exchanger is located below the front side of the air outlet of the fan, and the distance L2 between the lower end of the folded heat exchanger and the air outlet of the fan in the front-back direction is ≥35mm.
[0009] In some exemplary embodiments, a sealing element is provided between the upper end of the folded heat exchanger and the main body and / or between the lower end of the folded heat exchanger and the water receiving tray.
[0010] In some exemplary embodiments, the sealant is a sponge.
[0011] In some exemplary embodiments, the main body includes: a housing; and an air outlet frame, the air outlet frame being disposed at the front of the main body, the front air outlet being disposed at the air outlet frame, the folded heat exchanger being located inside the housing and between the air outlet frame and the fan, the upper end of the folded heat exchanger being sealed to the inner top surface of the housing between the air outlet frame and the fan by a sealing element, the water receiving tray being disposed at the lower rear side of the air outlet frame, the lower air outlet being located between the air outlet frame and the water receiving tray, and the lower end of the folded heat exchanger being sealed to the water receiving tray by a sealing element.
[0012] In some exemplary embodiments, M is 2, N is 2, 3, or 4, and the heat exchange tube is a copper tube or an aluminum tube.
[0013] This application also provides an air conditioner, including the indoor unit of any of the above embodiments.
[0014] The air conditioner indoor unit provided in this application embodiment has a folded heat exchanger. Compared with a straight-vent heat exchanger, the folded heat exchanger has a larger effective size for arranging U-tubes in the vertical direction. This allows for the arrangement of more U-tubes in the vertical direction. This solution can improve the heat exchange efficiency of the heat exchanger by reducing the number of heat exchange tube rows and increasing the number of U-tubes arranged in the vertical direction. Moreover, this solution only has one or two rows of heat exchange tubes, which reduces the air resistance formed by the heat exchange tubes and can reduce the air outlet noise of the air conditioner indoor unit.
[0015] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures particularly pointed out in the description and the drawings. Attached Figure Description
[0016] The accompanying drawings are provided to further illustrate the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solution of this utility model and do not constitute a limitation on the technical solution of this utility model.
[0017] Figure 1 A cross-sectional view of an indoor air conditioner unit provided in some embodiments of this application;
[0018] Figure 2 A cross-sectional structural schematic diagram of an air conditioner indoor unit provided in other embodiments of this application;
[0019] Figure 3 This is a cross-sectional structural diagram of an air conditioner indoor unit provided in some embodiments of this application.
[0020] The attached diagram lists the components represented by each number as follows:
[0021] 100 Main body, 110 Shell, 120 Air outlet frame, 121 Front air outlet, 130 Lower air outlet, 200 Water collection tray, 300 Fan, 400 Bending heat exchanger, 410 Heat exchange tube, 420 Heat exchange section, 500 First air guide plate, 600 Second air guide plate, 700 Sealing element. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.
[0023] Analysis revealed that among the three rows of heat exchange tubes, the row closest to the fan has the largest temperature difference, while the row furthest from the fan has the smallest. Using the heat exchange efficiency of the row closest to the fan as a factor of 1, the heat exchange efficiency of the middle row is only 0.6 to 0.7 times that of the row closest to the fan, and the heat exchange efficiency of the row furthest from the fan is only 0.3 to 0.4 times that of the row closest to the fan. This lower efficiency of the heat exchanger in this type of ducted air conditioner, coupled with the relatively high air resistance created by the three rows of heat exchange tubes, results in higher noise levels from the exhaust.
[0024] The air conditioner indoor unit provided in this application embodiment, such as Figures 1 to 3 As shown, it includes: a main body 100, with a front air outlet 121 on the front side wall of the main body 100 and a lower air outlet 130 on the front part of the lower side wall of the main body 100; a water receiving tray 200, which is located inside the main body 100 and behind the lower air outlet 130; a fan 300 and a heat exchanger, with the fan 300 located inside the main body 100 and behind the water receiving tray 200, and the heat exchanger located in the water receiving tray 200; wherein, the heat exchanger is a folded heat exchanger 400, which has M rows of heat exchange tubes 410 and N heat exchange sections 420, the N heat exchange sections 420 being connected in sequence to form N folds, and the M rows of heat exchange tubes 410 passing through the N heat exchange sections 420, where 1≤M≤2, and N≥2.
[0025] The indoor unit of this air conditioner uses a folded heat exchanger 400. Compared to a straight-vent heat exchanger, the folded heat exchanger 400 has a larger effective size for arranging U-tubes in the vertical direction. This allows for the arrangement of more U-tubes in the vertical direction (each U-tube includes two heat exchange tubes 410, and all U-tubes ultimately form M rows of heat exchange tubes 410). This design improves the heat exchange efficiency by reducing the number of rows of heat exchange tubes 410 and increasing the number of U-tubes arranged in the vertical direction. Moreover, this design uses only one row of heat exchange tubes 410 or two rows arranged sequentially in the front and back directions, resulting in less air resistance (the thickness of the heat exchanger in the front and back directions can also be reduced due to the reduction in the number of heat exchange tube rows), which can reduce the exhaust noise of the indoor unit.
[0026] In some embodiments, such as Figures 1 to 3 As shown, the concave side of the folded heat exchanger 400 faces rear and the convex side faces front. In the front-rear direction, the front end of the folded heat exchanger 400 is located behind the lower air outlet 130, so that the condensate dripping from the front end of the folded heat exchanger 400 will not fall into the room from the lower air outlet 130.
[0027] In some embodiments, such as Figures 1 to 3As shown, the front end of the folded heat exchanger 400 in the front-back direction is located behind the front end of the water receiving pan 200, and the distance L1 between the front end of the folded heat exchanger 400 and the front end of the water receiving pan 200 in the front-back direction is ≥5mm. This scheme can ensure that all the condensate dripping from the front end of the folded heat exchanger 400 falls into the water receiving pan 200.
[0028] In some embodiments, such as Figures 1 to 3 As shown, the indoor unit of the air conditioner also includes: a first air guide plate 500, one end of which (as shown above) is hinged to the upper part of the front air outlet 121, and the other end of which (as shown below) is configured to swing from the front air outlet 121 toward the interior of the main body 100; and a second air guide plate 600, one end of which (as shown below) is hinged to the lower part of the front air outlet 121, and the other end of which (as shown above) is configured to swing from the front air outlet 121 toward the interior of the main body 100; when the lower air outlet 130 needs to be closed, the lower air outlet 130 is closed by the second air guide plate 600; when the front air outlet 121 needs to be closed, the front air outlet 121 is closed by the first air guide plate 500 and the second air guide plate 600 together. The maximum circumference of the swing at the other end of the first air guide plate 500 is the reference circle D1, and the maximum circumference of the swing at the other end of the second air guide plate 600 is the reference circle D2. The folded heat exchanger 400 is located behind the reference circles D1 and D2, and the minimum distance t1 between the folded heat exchanger 400 and the reference circle D1 is ≥5mm, and the minimum distance t2 between the folded heat exchanger 400 and the reference circle D2 is ≥5mm. In this way, the folded heat exchanger 400 will not interfere with the movement trajectory of the first air guide plate 500, nor with the movement trajectory of the second air guide plate 600.
[0029] In some embodiments, such as Figures 1 to 3 As shown, the air outlet of the fan 300 is located inside the upper side of the main body 100 and blows air towards the lower front side of the air outlet of the fan 300. The lower end of the folded heat exchanger 400 is located below the front side of the air outlet of the fan 300. The distance L2 between the lower end of the folded heat exchanger 400 and the air outlet of the fan 300 in the front-back direction is ≥35mm. In this way, the part of the folded heat exchanger 400 below the extension line K of the lower wall of the air outlet of the fan 300 is less (that is, between the fan 300 and the heat exchanger, the area below the extension line K of the lower wall of the air outlet of the fan 300 is a low wind speed area, and the number of U-tubes in the low wind speed area is less). Therefore, more U-tubes are directly opposite the air outlet of the fan 300, and the heat exchange efficiency of the folded heat exchanger 400 is higher.
[0030] It can be, such as Figures 1 to 3As shown, a sealing element 700 is provided between the upper end of the folded heat exchanger 400 and the top wall of the main body 100 to prevent air leakage between the upper end of the folded heat exchanger 400 and the top wall of the main body 100; or it can be, as... Figures 1 to 3 As shown, a sealing element 700 is provided between the lower end of the folded heat exchanger 400 and the water receiving pan 200 to prevent air leakage between the lower end of the folded heat exchanger 400 and the water receiving pan 200; all of the above can achieve the purpose of this application, and their purpose has not departed from the design concept of this utility model, so they will not be repeated here, and should all fall within the protection scope of this application.
[0031] It can be, such as Figures 1 to 3 As shown, the sealing element 700 is a sponge; or it can be a velvet cloth; or it can be a foam, etc.; all of the above can achieve the purpose of this application, and their purpose has not deviated from the design concept of this utility model. They will not be described in detail here, and all should fall within the protection scope of this application.
[0032] In some embodiments, such as Figures 1 to 3 As shown, the main body 100 includes: a shell 110; and an air outlet frame 120. The air outlet frame 120 is located at the front of the main body 100, and a front air outlet 121 is located at the air outlet frame 120. A folded heat exchanger 400 is located inside the shell 110 and between the air outlet frame 120 and the fan 300. The upper end of the folded heat exchanger 400 is sealed with the inner top surface of the shell 110 between the air outlet frame 120 and the fan 300 by a sponge. A water receiving tray 200 is located at the lower rear side of the air outlet frame 120. A lower air outlet 130 is located between the air outlet frame 120 and the water receiving tray 200. The lower end of the folded heat exchanger 400 is sealed with the water receiving tray 200 by a sponge.
[0033] It can be, such as Figure 1 As shown, M is 2 and N is 2; or it could be, as... Figure 2 As shown, M is 2 and N is 3; or it could be, as... Figure 3 As shown, M is 2, N is 4, etc.; it can be that the heat exchange tube 410 is a copper tube; or it can be that the heat exchange tube 410 is an aluminum tube, etc.; all of the above can achieve the purpose of this application, and their purpose has not deviated from the design concept of this utility model, so they will not be repeated here, and all should fall within the protection scope of this application.
[0034] In some embodiments, the indoor unit of the air conditioner is configured as a ducted unit.
[0035] The air conditioner provided in this application embodiment (not shown in the figure) includes the indoor unit of the air conditioner described in any of the above embodiments.
[0036] This air conditioner possesses all the advantages of the indoor unit provided in any of the above embodiments, which will not be elaborated further here.
[0037] In summary, the air conditioner indoor unit provided in this application embodiment uses a folded heat exchanger. Compared to a straight-vent heat exchanger, the folded heat exchanger has a larger effective size for arranging U-tubes in the vertical direction, allowing for the arrangement of more U-tubes. This solution improves the heat exchange efficiency by reducing the number of heat exchange tube rows and increasing the number of U-tubes arranged in the vertical direction. Moreover, since this solution only has one or two rows of heat exchange tubes, the air resistance formed by the heat exchange tubes is smaller, which can reduce the air outlet noise of the air conditioner indoor unit.
[0038] In the description of this utility model, it should be noted that the terms "upper", "lower", "one side", "the other side", "one end", "the other end", "side", "opposite", "four corners", "periphery", "square structure", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the structure referred to has a specific orientation, or is constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0039] In the description of the embodiments of this utility model, unless otherwise expressly specified and limited, the terms "connection," "direct connection," "indirect connection," "fixed connection," "installation," and "assembly" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. The terms "installation," "connection," and "fixed connection" can refer to a direct connection or an indirect connection through an intermediate medium, or they can refer to the internal communication between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0040] Although the embodiments disclosed in this utility model are as described above, the content described is only for the purpose of facilitating understanding of this utility model and is not intended to limit this utility model. Any person skilled in the art to which this utility model pertains may make any modifications and changes in the form and details of the implementation without departing from the spirit and scope disclosed in this utility model, but the patent protection scope of this utility model shall still be defined by the appended claims.
Claims
1. An indoor unit for an air conditioner, characterized in that, include: The main body has a front air outlet on its front side wall and a lower air outlet on the front of its lower side wall. A water collection tray is located inside the main body and behind the lower air outlet; A fan and a heat exchanger, wherein the fan is located inside the main body and is disposed on the rear side of the water receiving pan, and the heat exchanger is disposed on the water receiving pan; The heat exchanger is a folded heat exchanger, which has M rows of heat exchange tubes and N heat exchange sections. The N heat exchange sections are connected in sequence to form N folds. The M rows of heat exchange tubes pass through the N heat exchange sections, where 1≤M≤2 and N≥2.
2. The indoor unit of the air conditioner according to claim 1, characterized in that, The front end of the folded heat exchanger is located behind the lower air outlet in the front-back direction.
3. The indoor unit of the air conditioner according to claim 1 or 2, characterized in that, In the front-back direction, the front end of the folded heat exchanger is located behind the front end of the water receiving pan, and the distance L1 between the front end of the folded heat exchanger and the front end of the water receiving pan in the front-back direction is ≥5mm.
4. The indoor unit of an air conditioner according to claim 1 or 2, characterized in that, Also includes: A first air guide plate, one end of which is hinged to the upper part of the front air outlet, and the other end of which is configured to swing from the front air outlet toward the interior of the main body; and The second air guide plate has one end hinged to the lower part of the front air outlet, and the other end of the second air guide plate is configured to swing from the front air outlet toward the interior of the main body. Wherein, the maximum circumference of the swing at the other end of the first air guide plate is the reference circle D1, the maximum circumference of the swing at the other end of the second air guide plate is the reference circle D2, the folded heat exchanger is located behind the reference circles D1 and D2, and the minimum distance t1 between the folded heat exchanger and the reference circle D1 is ≥5mm, and the minimum distance t2 between the folded heat exchanger and the reference circle D2 is ≥5mm.
5. The indoor unit of an air conditioner according to claim 1 or 2, characterized in that, The air outlet of the fan is located on the upper inside of the main body, and the lower end of the folded heat exchanger is located below the front side of the air outlet of the fan. The distance L2 between the lower end of the folded heat exchanger and the air outlet of the fan in the front-back direction is ≥35mm.
6. The indoor unit of an air conditioner according to claim 1 or 2, characterized in that, A sealing element is provided between the upper end of the folded heat exchanger and the main body and / or between the lower end of the folded heat exchanger and the water receiving tray.
7. The indoor unit of an air conditioner according to claim 6, characterized in that, The sealing element is a sponge.
8. The indoor unit of an air conditioner according to claim 1 or 2, characterized in that, The subject includes: shell; and An air outlet frame is provided at the front of the main body, and a front air outlet is provided at the air outlet frame. The folded heat exchanger is located inside the shell and between the air outlet frame and the fan. The upper end of the folded heat exchanger is sealed to the inner top surface of the shell between the air outlet frame and the fan by a sealing element. A water receiving tray is provided at the lower rear side of the air outlet frame, and a lower air outlet is located between the air outlet frame and the water receiving tray. The lower end of the folded heat exchanger is sealed to the water receiving tray by a sealing element.
9. The indoor unit of an air conditioner according to claim 1 or 2, characterized in that, M is 2, N is 2, 3, or 4, and the heat exchange tube is a copper tube or an aluminum tube.
10. An air conditioner, characterized in that, Including the indoor unit of an air conditioner as described in any one of claims 1 to 9.